function remove_bs($Str) { $StrArr = str_split($Str); $NewStr = ''; foreach ($StrArr as $Char) { $CharNo = ord($Char); if ($CharNo == 163) { $NewStr .= $Char; continue; } // keep £ if ($CharNo > 31 && $CharNo < 127) { $NewStr .= $Char; } } return $NewStr; }